target/linux/arc770/image/Makefile

   1 #
   2 # Copyright (C) 2016 OpenWrt.org
   3 #
   4 # This is free software, licensed under the GNU General Public License v2.
   5 # See /LICENSE for more information.
   6 #
   7 include $(TOPDIR)/rules.mk
   8 include $(INCLUDE_DIR)/image.mk
   9
  10 # On ARC initramfs is put before entry point and so entry point moves
  11 # in memory from build to built. Thus we need to extract EP from vmlinux
  12 # every time before generation of uImage.
  13 kernel_ep = `$(KERNEL_CROSS)readelf -h $(1) | grep "Entry point address" | grep -o 0x.*`
  14
  15 define Build/patch-dtb
  16         $(STAGING_DIR_HOST)/bin/patch-dtb $@ $(DTS_DIR)/$(DEVICE_DTS).dtb
  17 endef
  18
  19 ifneq ($(CONFIG_TARGET_ROOTFS_INITRAMFS),)
  20 # Root FS built-in
  21 define Device/vmlinux
  22         KERNEL_SUFFIX := .elf
  23         KERNEL := kernel-bin | patch-dtb
  24         KERNEL_INITRAMFS_NAME = vmlinux-initramfs.elf
  25 endef
  26
  27 define Device/nsim
  28         $(call Device/vmlinux)
  29         DEVICE_PROFILE := nsim
  30         DEVICE_DTS := nsim_700
  31 endef
  32 TARGET_DEVICES += nsim
  33 endif
  34
  35 # Root FS on SD-card
  36 KERNEL_LOADADDR := 0x80000000
  37 DEVICE_DTS_LIST:= axs101 nsim_700
  38 FAT32_BLOCK_SIZE=1024
  39 FAT32_BLOCKS=$(shell echo $$(($(CONFIG_AXS10X_SD_BOOT_PARTSIZE)*1024*1024/$(FAT32_BLOCK_SIZE))))
  40
  41 define Image/Prepare
  42         # Build .dtb for all boards we may run on
  43         $(foreach dts,$(DEVICE_DTS_LIST),
  44                 $(call Image/BuildDTB,$(DTS_DIR)/$(dts).dts,$(DTS_DIR)/$(dts).dtb)
  45         )
  46 endef
  47
  48 define Image/Build/SDCard
  49         rm -f $(KDIR_TMP)/$(IMG_PREFIX)-$(PROFILE)-boot.img
  50         mkfs.fat $(KDIR_TMP)/$(IMG_PREFIX)-$(PROFILE)-boot.img -C $(FAT32_BLOCKS)
  51         mkimage -C none -A arc -T script -d uEnv.txt $(BIN_DIR)/uEnv.scr
  52         mcopy -i $(KDIR_TMP)/$(IMG_PREFIX)-$(PROFILE)-boot.img $(BIN_DIR)/uEnv.scr ::boot.scr
  53         mcopy -i $(KDIR_TMP)/$(IMG_PREFIX)-$(PROFILE)-boot.img $(DTS_DIR)/*.dtb ::
  54         mcopy -i $(KDIR_TMP)/$(IMG_PREFIX)-$(PROFILE)-boot.img $(BIN_DIR)/$(IMG_PREFIX)-uImage ::uImage
  55
  56         ./gen_axs10x_sdcard_img.sh \
  57                 $(BIN_DIR)/$(IMG_PREFIX)-$(PROFILE)-sdcard-vfat-$(1).img \
  58                 $(KDIR_TMP)/$(IMG_PREFIX)-$(PROFILE)-boot.img \
  59                 $(KDIR)/root.$(1) \
  60                 $(CONFIG_AXS10X_SD_BOOT_PARTSIZE) \
  61                 $(CONFIG_TARGET_ROOTFS_PARTSIZE)
  62
  63 ifneq ($(CONFIG_TARGET_IMAGES_GZIP),)
  64         gzip -f9n $(BIN_DIR)/$(IMG_PREFIX)-$(PROFILE)-sdcard-vfat-$(1).img
  65 endif
  66 endef
  67
  68 define Image/BuildKernel
  69         # Build unified uImage
  70         $(call Image/BuildKernel/MkuImage, \
  71                 none, $(KERNEL_LOADADDR),$(call kernel_ep,$(KDIR)/vmlinux.elf) , \
  72                 $(KDIR)/vmlinux, \
  73                 $(BIN_DIR)/$(IMG_PREFIX)-uImage \
  74         )
  75 endef
  76
  77 define Image/Build
  78         $(call Image/Build/$(1),$(1))
  79         $(call Image/Build/SDCard,$(1))
  80         dd if=$(KDIR)/root.$(1) of=$(BIN_DIR)/$(IMG_PREFIX)-root.$(1) bs=128k conv=sync
  81         $(call Image/Gzip,$(BIN_DIR)/$(IMG_PREFIX)-root.$(1))
  82 endef
  83
  84 $(eval $(call BuildImage))